Recursion- Allows one type of syntactic structure to be included inside another structure of the same type, such as a noun phrase, to create infinitely long sentences or an infinite number of different sentences.
Example- The boy that chased the dog that chased the cat that chased the squirrel that chased the bird that chased the bug.
Link-http://www.cs.uni.edu/~wallingf/patterns/recursion.html
Patty Wagner
Christina Gonzalez Chapter 5 Collaborative Reports



Prescriptive Grammar- It’s a way of explaining how language should or should not be used but not necessarily describing the way in which it’s used. For example, if I were asked to write a short paragraph describing myself for my boss and one to my friends, I would use a different choice of words and messages I was trying to get across.



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Head of phrase- Contains the word that determines the syntactic phrase functions such as noun phrase prepositional phrase etc. For example, in the phrase the house, it is clear that the house is the head of the phrase.



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Determiner- refers to the word that is used before the noun that helps the reader understands if the sentence is describing something specific or in general. For example, in the phrase the doctor the determiner is describing something specific, yet in the phrase his patients the word is being used to describe something in general.



http://www.englishclub.com/grammar/adjectives-determiners_quiz.htm



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Grammatical (well-formed)-Are sentences that use words and their relationships togethercorrectly in order to get the meaning across. For example, the sentence that dog is not cute is considered a grammatically correct sentence.



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Ungrammatical (ill-formed)When a sentence is considered Ungrammatical the words are in order, which does not follow the syntactic rules of grammar.For example, with regards to this sentence, that dog not cute it is considered Ungrammatical.



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